Overview
The CD74HC02ME4 is a high-speed CMOS logic quad 2-input NOR gate produced by Texas Instruments. This device is part of the 74HC series, known for its wide operating voltage range and low power consumption. It is designed to perform the Boolean function Y = A + B in positive logic, making it suitable for various digital logic applications.
Key Specifications
| Parameter | Value |
|---|---|
| Logic Function | NOR Gate |
| Number of Gates | 4 |
| Number of Input Lines | 2 per gate |
| Number of Output Lines | 1 per gate |
| Number of Pins | 14 |
| Package Type | SOIC |
| Operating Temperature Range | -55°C to 125°C |
| Supply Voltage Range | 2 V to 6 V |
| Propagation Delay at Nominal Voltage | 23 ns |
| Output Drive (IOL/IOH) | 5.2 mA / -5.2 mA |
| Quiescent Current | 0.02 mA |
| RoHS Compliance | Yes |
Key Features
- Buffered inputs for improved signal integrity
- Wide operating voltage range: 2 V to 6 V
- Wide operating temperature range: -55°C to 125°C
- Low power consumption compared to LSTTL logic ICs
- Supports fanout up to 10 LSTTL loads
- High-speed CMOS logic with a propagation delay of 23 ns at nominal voltage
- Lead-free and RoHS compliant
Applications
- Alarm and tamper detect circuits
- S-R latches
- General-purpose digital logic circuits
- Interface circuits between TTL and CMOS logic
- Any application requiring quad 2-input NOR gates
Q & A
- What is the logic function of the CD74HC02ME4?
The CD74HC02ME4 performs the Boolean function Y = A + B in positive logic, which is the NOR gate function. - What is the operating temperature range of the CD74HC02ME4?
The operating temperature range is -55°C to 125°C. - What is the supply voltage range for the CD74HC02ME4?
The supply voltage range is 2 V to 6 V. - How many gates are included in the CD74HC02ME4?
The device includes four independent 2-input NOR gates. - What is the propagation delay at nominal voltage for the CD74HC02ME4?
The propagation delay at nominal voltage is 23 ns. - Is the CD74HC02ME4 RoHS compliant?
Yes, the CD74HC02ME4 is RoHS compliant. - What is the package type of the CD74HC02ME4?
The package type is SOIC (Small Outline Integrated Circuit). - What is the quiescent current of the CD74HC02ME4?
The quiescent current is 0.02 mA. - Can the CD74HC02ME4 be used in safety-critical applications?
It is advisable to consult the datasheet and Texas Instruments' guidelines before using this component in safety-critical applications. - What is the output drive capability of the CD74HC02ME4?
The output drive capability is 5.2 mA / -5.2 mA.
